tPigMap Standard properties

Pig

author
Talend Documentation Team
EnrichVersion
6.5
EnrichProdName
Talend Data Fabric
Talend Real-Time Big Data Platform
Talend Big Data Platform
Talend Open Studio for Big Data
Talend Big Data
task
Data Governance > Third-party systems > Processing components (Integration) > Pig components
Data Quality and Preparation > Third-party systems > Processing components (Integration) > Pig components
Design and Development > Third-party systems > Processing components (Integration) > Pig components
EnrichPlatform
Talend Studio

These properties are used to configure tPigMap running in the Standard Job framework.

The Standard tPigMap component belongs to the Big Data and the Processing families.

The component in this framework is available when you are using one of the Talend solutions with Big Data.

Basic settings

Mapping links display as

Auto: the default setting is curves links

Curves: the mapping display as curves

Lines: the mapping displays as straight lines. This last option allows to slightly enhance performance.

Map editor

It allows you to define the tPigMap routing and transformation properties.

Advanced settings

tStatCatcher Statistics

Select this check box to collect log data at the component level.

Global Variables

Global Variables

ERROR_MESSAGE: the error message generated by the component when an error occurs. This is an After variable and it returns a string. This variable functions only if the Die on error check box is cleared, if the component has this check box.

A Flow variable functions during the execution of a component while an After variable functions after the execution of the component.

To fill up a field or expression with a variable, press Ctrl + Space to access the variable list and choose the variable to use from it.

For further information about variables, see Talend Studio User Guide.

Usage

Usage rule

Possible uses are from a simple reorganization of fields to the most complex Jobs of data multiplexing or demultiplexing transformation, concatenation, inversion, filtering/splitting and more, in a Pig process.

Limitation

The use of tPigMap supposes minimum Java and Pig Latin knowledge in order to fully exploit its functionalities.

This component is a junction step, and for this reason cannot be a start nor end component in the Job.